A-Tech 8GB Module for ASUS X501A Laptop & Notebook Compatible DDR3/DDR3L PC3-12800 1600Mhz Memory Ram (ATMS393739B12351X1) at Amazon.com
Asus X501a MEMORY UPGRADE to 8gb from 4gb --- Motherboard Teardown, similar for X401a or X301A - YouTube
A-Tech 8GB Module for ASUS X501A Laptop & Notebook Compatible DDR3/DDR3L PC3-14900 1866Mhz Memory Ram (ATMS393739B30845X1) at Amazon.com
parts-quick 8GB Memory for ASUS X501A DDR3L PC3L-12800 SODIMM Compatible RAM at Amazon.com
X401a Rev:2.0 Mainboard For Asus X501a F501a Laptop Motherboard 15-inch Notebook With Slj8e Hm76 Support I3 I5 Cpu Ddr3 - Laptop Motherboard - AliExpress
Asus X401a Disassembly and RAM, HDD upgrade options | MyFixGuide.com
4GB (1X4GB) Memory Ram Compatible with Asus/Asmobile X Series Ultrabook X501A Notebook By CMS A25 - Computer Memory Solutions
Memory RAM Upgrade for Asus X501A 4GB DDR3 SODIMM | eBay
Asus X501A-RH31 Motherboard Replacement - iFixit Repair Guide
X401a Rev:2.0 Mainboard For Asus X501a F501a Laptop Motherboard 15-inch Notebook With Slj8e Hm76 Support I3 I5 Cpu Ddr3 - Laptop Motherboard - AliExpress
Asus X401a Disassembly and RAM, HDD upgrade options | MyFixGuide.com
OFFTEK 4GB Replacement Memory RAM Upgrade for Asus X501A (DDR3-12800) Laptop Memory at Amazon.com
How to upgrade RAM memory in Asus X501 laptop - YouTube
Upgrade | PCWIZARDPRO
Inside ASUS X507 - disassembly and upgrade options | LaptopMedia.com
asus x401a x501a x301a hard drive upgrade ssd hd - YouTube
Asus X501A-RH31 Repair - iFixit
Inside ASUS X509 - disassembly and upgrade options | LaptopMedia.com